$ git clone -n https://src.fedoraproject.org/rpms/ocaml-libvirt.git /var/lib/mock/f40-build-2220692-52670/root/chroot_tmpdir/scmroot/ocaml-libvirt
Cloning into '/var/lib/mock/f40-build-2220692-52670/root/chroot_tmpdir/scmroot/ocaml-libvirt'...
$ git fetch origin 2df1a133c12bfa4a9caac3edb382742045a987e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-libvirt
 * [new ref]         2df1a133c12bfa4a9caac3edb382742045a987e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2df1a13 OCaml 5.1.1 + s390x code gen fix for Fedora 40